Jules bouedoff



(No Model.)

J. BOURBON. CORK STRIP 'EUR PROTBGTING STEAM AND GAS PIPBS, am.

No. 308,402. Patented Nov. 25, 1884.

D C Q JULES BOURDON, OF PARIS, FRANCE.

CORK STRIP FOR PROTECTING STEAM AND GAS PIPES, &C.

SPECIFICATION forming part of Letters Patent No. 308,402, dated November 25, 1884.-.

Application filed August 21). 1584-. (No model.) Patented in France February 13, 1883, No. 153,698, and in Belgium February 23,

To @ZZ whom, t may concern:

Be it known that I, JULES BOURBON, a resident of Paris, in the Republic of France, have invented a new and useful Improvement in Cork Strips for Protecting Steam and Gas Pipes and Reservoirs, tvc., of which the following is a specification, reference being had to the accompanying drawings.

IIerctofore in the use of cork for a non-conducting cover or jacket for a heated surface or surfaces to be protected from cold it has always been applied in small plates or pieces, which were connected together in many different well-known ways; but the number of the plates and the imperfection of the means used for joining them was such that they became rapidly deteriorated and in a short time were of little or no value.

-The object of my invention is to remedy this difiiculty by applying the cork in the form of a continuous ribbon or band.

The invention consists in a continuous strip or ribbon composed of a strip of cloth and pieces of cork cemented to the cloth, and having their ends beveled and cemented together.

The invention also consists in a non-conducting covering for cylindrical pipes and reservoirs made of spirally-wound continuous strips or ribbons, each strip or ribbon being composed of a strip of cloth and pieces of cork cemented to the cloth and having their ends beveled and cemented together.

The invention also consists in a new article of manufacture-to wit, a non-conducting covering consisting of one or more thicknesses of cork in bands or strips severally composed of pieces having their ends beveled and cemented together and ,being covered ou one face or both faces with a strip of cloth.

Figure l is a perspective view of a piece of pipe with two thicknesses of my new and improved covering wrapped around it. Fig. 2 is a longitudinal section of one thickness of my covering. Fig. 3 is a transverse section of the same. Fig. 4 is'a longitudinal section of a piece of pipe wrapped with two thicknesses of my covering. Fig. 5 is a transverse section of the same.

Similar letters of reference denote corresponding parts in all the gures.

To make my covering, rough cork is cut into bands or strips of the desired breadth and thickness by the tools used for similar purposes by workmen engaged in cutting cork. The cork being reduced to the proper breadth and thickness, I bevel the ends of the strips and cement them together with any strongly-adhcsive water-proof c'ement-as, for eX- ample, a solution of india rubber. By so cementing the ends together I form a continuous ribbon or band of the strips of cork. Lastly, with the same cement I tix a strip of cloth on one or both faces ofthe cork band or ribbon. This strip of cloth may be of anv desired length, andif it be strong` enough will greatly contribute to holding the pieces of cork together. This-covering may be used for a non-conducting jacket for metallic pipes and reservoirs in which it is desired to retain heat, but mostly upon steam-pipes and similar apparatus.

The accompanying drawings illustrate how it is applied to a pipe. A strip, a, of the covering is wound spirally round the pipe T so that its edges will touch one another through their whole length. Upon this is Wound in the same way another strip, a', of the same material, so that its middle will always be over the edges of the strip a, thus breaking the joint. One, two,three, or more thicknesses may be used, as may be desired or as the circumstances seem to require. To other surfaces this covering is to be applied in a similar way. Y

To protect the outside of the covering, a strip of cloth, e, may be laid on it, if it seem desirable or necessary. Layers of other nonconducting material-such as aows and the likemay be laid between the layers of the covering. This covering may be used in any place where a non-conducting surface is desired, and where the heat is not so great as to burn the material of the ribbon or band. It may be used in electric apparatus; for garden belts, to prevent them from breaking; for the lining of apartments, walls, doors, and windows; for making life-preservers; for packing fragile articles, and for many other uses to which cork and other materials, are now applied. v

IOO

Vhat I claim as my invention, and desire 'to secure by Letters Patent, is-

1. A continuous strip or ribbon composed of a strip of cloth, and pieces of cork cemented 5 to the cloth and having` their ends beveled and cemented together, substantially as herein described.

2. A nolrconducting covering for cylindrical pipes and reservoirs, consisting,` of spirally- 1o wound continuons strips or ribbons, each strip or ribbon being composed of a strip of cloth, and pieces of cork cemented to the cloth, and having their ends beveled and cemented together, substantially as herein der 5 scribed.

ered on one face or both faces with a strip of' cloth, substantially as herein described.

In testimony whereof I have signed this specification in the presence of two subscribing Witnesses.

JULES BOURBON.

fitnessesz LoUrs GnNias, GHARLEs Assi. 

